EDST1101 Lecture Notes - Lecture 10: Cognitive Load, Divergent Thinking, Problem Solving

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16 Oct 2018

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Problem solving skills: highly valued - employers want high school or university graduates to be able to problem solve". The capacity for analytical and critical thinking and for creative problem solving (unsw graduate attributes) What is a problem: the current state differs from a desired state, there is a need to move from an inisital (current) state to a goal (desired) state, there are some means to transform the conditions. If the solution to a task is obvious (based on prior knowledge) and can be automatically achieved in one step, then the task is not considered to be a problem. Types of problems: according to structural differences. Ill defined-problem: more than one acceptable solution, no agreed problem solving strategy, eg. global warming, well-defined problem, one correct solution, an agreed problem solving strategy, eg. The problem space: key components in problem solving.

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please help me with this lab.

Ethanol Production

(Thermal Energy Conservation)

Lab Objective

Through this lab exercise, the principle of conservation of charge will be demonstrated using an adopted problem-solving methodology and a simple Matlab exercise.

Materials

Matlab 2007 or higher

Lab Assignment

Introduction

GASBUGS INC. is actually a division of a much larger alternate, fuel-generating corporation known as BIOFUELS INTERNATIONAL. One thing this company produces is ethanol (C₂H₆O) from an industrial process that uses a type of yeast (Saccharomyces cerevisiae). The elemental formula of S. cerevisiae is CH_1.83 O_0.56 N_0.17 and it has a heat of combustion of approximately -21.2 kJ/g. In their batch process, .25lb_mNH₃ and 5.0lb_m glucose are combined with the yeast at 25^oC. After the reaction goes to completion (at least one of the starting reactants is used up), 1. 4 lb_m of ethanol is produced. The unbalanced reaction for this process is:

C₂H₆O (s) + NH₃ (g) â C₃H₈O₃ (l) + C₂H₆O (l) + CH_1.83 O_0.56 N_{0.17 +} CO₂(g) + H₂O (l)

Note: 1 mol of glucose produces .5 mole glycerol (C₃H₈O₃₎ and that the ration of NH₃ to H₂O is 1:1.

You are told that it is likely that too much glucose is being added in the batch reactor process. It is your goal as the production engineering support specialist working for BIOFUELS INTERNATIONAL to model this scenario to determine how much unnecessary glucose is being added to reduce waste and cost.

Procedure

Follow the 4 steps of methodology for solving problems on pp. 44â46 of your textbook to set up the model.

Using MATLAB, create a plot that demonstrates the impact on ethanol production as the amount of glucose in the reactor varies from 1.0 lb_m to 10 lb_m.

Questions

How much excess glucose was being added to the reactor?

What is the ideal amount needed?

How much heat was produced and subsequently removed from the system?

Interpret the Matlab plot produced.

1.8 Methodology for Solving Engineering Problems. page 44-46. four steps.

Developing a pattern or methodology for solving engineering problems is important for consistency and thoroughness. The application of accounting and/conservation equations (discussed in Chapters 2â6) should be carried out in an organized manner; this makes the solution easy to follow, check, and be used by others. As a new engineer, you may find going through these many steps tedious and excessive for seemingly simple problems. However, when the level of difficulty increases, having a method or process to fall back on will be invaluable. Experienced engineers use most of the steps below when solving real-world problems.

The methodology laid out here or one similar to it should be used to solve problems throughout your career. The method outlined below is a general guide of the steps that will be followed to solve problems in Chapters 3â6 of this book, and as in real-world problems, only steps applicable to the problem should be performed. Other methodologies for solving problems are also valid; the critical issue is that you develop a thorough method and implement it regularly. As you mature as an engineer, it is appropriate that you develop your own problem-solving method.

1. Assemble. Information regarding the problem, including a picture, should be assembled and rewritten.

(a) The objective of the problem or the answer that you are seeking to findshould be clearly stated. This is often written as: Find: the flow rate ...

(b) Draw a diagram showing all relevant information. Often a simple box diagram showing all components entering and leaving the system allows information to be summarized in a convenient way. The system, surroundings, and system boundary should be drawn and labeled. When possible, all known quantitative information should be shown on the diagram.

(c) Set up a calculation table. The known values on your diagram, the components entering and leaving the system, form the foundation for the table. Units should be consistent across the table. The unknown components on the table (blanks) are often the desired answers. As you solve for different components, you can fill in the table. (Developing a table is optional, although useful, especially in multicomponent mass balance problems)

2. Analyze. A framework for understanding what is known and what is not known is developed at this stage.

(a) State any assumptions applied to the problem. Biological systems are extremely complex, since many processes and reactions, as well as transport of materials, are often going on simultaneously. Knowing when and where to make assumptions to simplify the system to a few salient features is the mark of an outstanding engineer. An example of an assumption is that the human forearm can be modeled as a cylinder.

(b) Collect and state any extra data. In this step, you may need to research information about a component in your system that was not given in the problem definition. An example of extra data that you may need to look up is the viscosity of plasma.

(c) List the variables and notations (symbols) adapted for the problem, and select a set of units for the problem. Typically, a choice is made to use either metric or British units throughout the problem.

[Note: The notations for variables may vary from discipline to discipline, but standard variables that are inherently understood within a subject do not always need to be listed. For example, kinetic energy is defined as EKin physics, but as T in mechanics. If you are calculating data that will be shared with coworkers of the same discipline, it is not necessary to define standard variables. Rather, variables specific to an aspect of the problem need to be defined (e.g., Fs = force of the astronaut on a chair).]

(d) State a basis of calculation. A basis is a specified input or output to a system (usually given as a flow rate or amount). In some problem statements, the basis is given. In other problems, values of components are given relative to one another and not as absolute amounts or rates. Select a basis if one is not given. Mass (Chapter 3) and energy (Chapter 4) problems often need a basis.

(e) If the problem involves chemical reaction(s), list the compounds involved and stoichiometrically balance the equation(s).

3. Calculate. Equations are developed and solved in a logical manner.

(a) Write down all appropriate accounting and/or conservation equations.Writing down the governing equations and then simplifying them by analyzing the system to eliminate unnecessary terms can be a helpful tool in solving engineering problems. For example, if asking the question, âIs this system at steady-state?â results in a positive response, the governing equation may be simplified by making the Accumulation term equal zero. This concept will be discussed further in Chapter 2. Write down any other essential equations needed to solve the problem.

(b) By applying the appropriate equations, calculate the unknown quantities. This is the heart of solving the problem and may require extensive effort. In some cases, the calculation of unknown quantities can be done sequentially. In other cases, it may be best to solve a series of equations using MATLAB or other computer software.

[Note: For a multi-unit or complex mass and energy conservation problems, a strategy to solve the problem may be required. A degree-of-freedom analysis is a systematic method to demonstrate whether a problem can be solved with the stated information and can help determine the sequence in which the equations should be solved. This process is discussed in chemical engineering textbooks (e.g., Reklaitis, Introduction to Material and Energy Balances, 1983).]

4. Finalize. Correct answers to the problem statement are stated clearly.

(a) State the answers clearly with appropriate significant figures and units. Confirm that you answered the specific questions asked by the problem

Laboratory Report Cover Sheet
DeVry University
College of Engineering and Information Sciences

Course Number: ECET301

Professor:

Laboratory Number: 3

Laboratory Title: Ethanol Production

Submittal Date: Click here to enter a date.

Write a brief technical lab report summarizing the technical facts learned from this lab. The report should be organized to provide the following:

Section 1âIntroduction: An introductory/summary paragraph describing the type of conservation principle being analyzed and the key elements that will be discussed relating to this principle.

Section 2âModel: The documented model using the standard problem-solving methodology in section 1.8 of your text.

Section 3âPlot: Matlab plot with script to generate.

Section 4âDiscussion: A section describing the most important characteristics shown, or demonstrate via the modeled and collected data. Also include a practical example of how the information learned in this assignment might help you in a job setting in the real world.

Section 5âConcluding Remarks: A summary statement listing the most positive aspects of the assignment and any difficulties encountered.

Please edit and rewrite the following in YOUR OWN WORDS... sothat it cannot be passed as plagiarism. Also, it needs to passturnitin.com inspection. I am just asking for a very skillfullrewording of this passage that is distinguishably and uniquelydifferent.

What is a CPA?

A CPA, or Certified Public Accountant, is a designation reservedfor accountants in the US who pass the CPA exam. This designationshows an expertise in the field. To become a CPA in the US, astudent must pass the exam and meet other state requirements suchas gaining a certain amount of work experience or furtherededucation. The CPA licenses accountants to provide their servicesto the general public. The CPA designation is taken very seriously,as its requirements maintain that only the most knowledgeableaccounts can qualify. The designation is usually used behind apersonâs name to signify the level of experience, and is often apunishable offense if it is used without actually passing the examand requirements.

The CPA Exam Requirements

International students who want to become an expert inaccounting and achieve the CPA designation will first need to passthe CPA exam. The exam is certainly not easy and tests many of themost important accounting principles. The exam is called theUniform CPA exam, and the eligibility to actually take the examdepends on the exact state the student plans to test in. There arethree main requirements for taking the CPA Exam. They arecategorized as the 3 Eâs: Exam, Education, and experience. One ofthe main qualifications to sit for the exam is advanced education.Undergraduate degrees carry 120 credit hours. The CPA exam usuallyrequires 150 credit hours. This means students will have to achieve30 hours of graduate level coursework. It most cases, aninternational student will take the 30 extra hours and thencomplete a few extra classes to earn a masterâs degree inaccounting. The exam also tests some of the laws of the stateincluding contract and state laws and often tests the knowledge offederal laws as well. The third requirement to sit for the exam isusually some type of experience in the field of accounting. Whilenot mandatory in all states, some states require that a CPAcandidate have 2 years of work experience in accounting or taxpreparation. Some states only require general experience inaccounting.

Learn What a CPA Does

While the main function is to offer public accounting services,the CPA designation can allow accountants to do many other things.One of the main functions of a CPA is auditing, either for a smallor large business. Auditors go through financial statements andmake sure there are no discrepancies. Many CPAs go on to theexecutive levels for companies, as either CFOs or CEOs. Inaddition, many CPAs work in the tax field working income taxes andfederal and state taxes for small or mid-sized companies. Otherroles of CPAs include financial analysts, financial planners,forensic accountants, Management consulting, estate planning andcorporate finance.

The Many Benefits of Becoming a CPA

Certified public accountants are at the top of their field.Students interested in studying accounting should give seriousconsideration about getting the CPA in the US. In order to grow inan accounting career a CPA designation is almost necessary. Inaddition, CPAs will usually get paid higher. Those with a masterâsdegree and CPA will see their salary go up even higher. Inaddition, being a CPA in the US will open the door for so many morecareer opportunities. Accounting professional are a hot commodity,and those with an advanced degree and CPA designation will be onthe top of the list for most employers. Certified publicaccountants in the US have a lot of responsibility, but being atthe top of your field is a great feeling! International studentsinterested in studying accounting will find that becoming a CPA andgraduating with a degree in accounting will allow them to chasethere dream, whatever it may be, because it is such a versatilecareer and skillset.

What types of skills will I need?

To begin a successful career in accounting, you will need todevelop a wide array of knowledge, skills and competencies, rangingfrom a strong understanding of accounting and business concepts toeffective leadership and communication skills. You will also needto have a broad business perspective, which will enable you to "seethe big picture" of the internal and external factors that impacthow a business operates. Technology will also be a major enablerthroughout your career, so it's critical to stay abreast of andutilize new computer applications and systems as necessary.

Problem-solving, analytical and researchskills - You should be able to analyze, compare andinterpret facts and figures. The ability to identify and solveunstructured problems in an unfamiliar setting and provideinsightful consulting advice is a valued quality. Creative thinkingwill help you face issues on a daily basis and generate innovativesolutions. Also, it is essential to be able to effectively andefficiently research, organize and report on technical and/orindustry specific issues utilizing print, electronic or humansources.

Personal skills -Accounting is a service activity, and you will have to work well inteams as well as in one-on-one situations. Critical to anyorganization's success is the ability to lead, motivate and empowerteams to attain clear, concrete, timely and measurable results.

Strong communication skills including the ability tobe a good listener- You will becalled upon to persuasively present, discuss and defend your viewsboth formally and informally, in writing and verbally. Clients andco-workers will present you with issues and questions you will needto interpret and respond to quickly. The ability to show empathyand sensitivity to their situations will position you in afavorable light and earn their respect and trust.

Understand emergingtechnologies- You need to keepcurrent on emerging technologies like e-commerce, image processingand workflow technology, and understand how these impact businessoperations and the use of information for decision making. Youshould know how to use the Internet, e-mail and discussion boards,as well as be familiar with the latest spreadsheet, database, wordprocessing, accounting, and business and presentation softwarepackages.

Broad BusinessPerspective- You need a keenbusiness sense and an awareness of current events, both locally aswell as globally. As a key business partner to clients and/orcompany management, you add value to the organization by makingappropriate recommendations based on your understanding of companyoperations, policies, practices and competitive factors.

The purpose behind much of advertising is to influence each of the five Consumer Decision Making process (Problem Recognition, Information Search, Evaluation of Alternatives, Product Choice (i.e. Purchase) and Outcomes (i.e. Postpurchase). Each stage of the Consumer Decision Making process has techniques that help consumers to manage the stage and then move onto the next one successfully. Eventually, the consumer moves to purchase (where we get excited to make the sale) but don't underestimate how important the last stage (post purchase) is to making additional sales in the future. Below are guidelines that show basic techiniques used to target and manipulate each Consumer Decision Stage through advertising.

Below are some issues that you will want to consider as you evaluate each of the five chosen advertisements. Please remember that your goal is not simply to answer these questions, but to provide insights into the consumerâs decision making process that you feel would be useful to a marketing manager (e.g., if an ad triggered the consumerâs decision to purchase the product). Other areas to comment on would be level of involvement, etc.

Consumer Decision Making Stage:	Considerations for Stage:	Common Ad Techniques:
Problem Recognition	What problems does this product solve for the consumer? â¢ What triggered the decision to purchase this product? â¢ Was this the first time the consumer purchased such a product? Define and discern the Actual and Desired States	Ask a question (Whatâs for dinner tonight?) Show before (actual state) and after (desired state) Use the word ânewâ or âintroducingâ to initiate curiosity.
Information Search	â¢ Did the consumer seek information about the product and about various brands? How was this information collected, and how much information was collected? â¢ Was the consumer searching for any advertisements for the product? What was the consumerâs reaction to these advertisements?	Match amount of information with type of product. Direct consumers to website, free kit or other information venues. Show role models that âlookâ like the target market. Show the entire line of product offerings (all the flavors and colors, etc.) Testimonials, etc.
Evaluation of Alternatives	â¢ How many alternatives were considered? How were they selected?â¢ What features and characteristics of the product were most important to the consumer? Salient and Determinant defined attributes. â¢ How important was the brand of the product to the consumer?	Featuring specific variables that the product is known for (ex. Volvo=Safety). This is known as âpositioningâ a product. Competitive method (brand compares themselves to âleading brand or categoryâ) Comparative method (brand compares themselves to another brand by name (Coke vs. Pepsi)
Product Choice	â¢ Did any other people play a role in the decision process? Describe theroles that each person played. â¢ How was the final choice determined? How carefully was the decision made? â¢ Where did the consumer make the purchase? Why? â¢ Did the consumer pay full price for the product?	Tell consumers where and how the product is sold. Offer many ways to pay for the product. Divide payments. Offer sales promotion (coupons, rebates)
Post-Purchase Evaluation	â¢ How is the product used and consumed? How does the consumer feel when he or she uses the product? â¢ What is the meaning of this product to the consumer? Does it merely serve a function for the consumer, or does it say something about who the consumer is? Does the Ad encourage repeat purchase or loyalty to the brand- how?	Show awards the brand has won. Show how a brand should be consumed. Allow consumers many ways to return the product. Allow consumers to easily provide feedback. Reward consumers loyalty

This assignment asks you to find one ad that addresses each of the needs of the five stages (in other words five different ads). This means that there must be five different ads for the total project, one for each stage (all ads are different from one another). Create a Power Point Presentation that shows how the advertiser is addressing the needs of the consumer for the specific Consumer Decision Making stage.

*Be aware that there is a helpful power point demonstration in a conference opened this week marked as "Advertising and the Consumer Decision Process (Ad Examples)". This is informative only and does not need to be commented on.

First, show the ad in a slide and then follow-up with a slide which explains (bullet form) why the ad slide targets the Consumer Decision Making process stage. ALL ADS MUST BE STILL ADS (NO VIDEOS or LINKS). Therefore the ad MUST be able to be copied and pasted within the power point slide (NO LINKS). Here is the format of the presentation:

Slide 1: Name, date

Slide 2: Problem Recognition Ad

Slide 3: Explanation why it addresses this stage

Slide 4: Information Search Ad

Slide 5: Explanation why it addresses this stage

Slide 6: Evaluation of Alternatives Ad

Slide 7: Explanation why it addresses this stage

Slide 8: Product Choice (Purchase) Ad

Slide 9: Explanation why it addresses this stage

Slide 10: Outcomes (Postpurchase) Ad

Slide 11: Explanation why it addresses this stage

Slide 12: Conclusion

In the conclusion of the slide presentation choose which ad is most effective (overall) and why.

Logistics Run Down:

-No more than 18 slides in length (includes cover page and bibliography)

-Include a cover page and bibliography of sources. Outside sources (esp. learning resources from weeks covered) are encouraged to be cited and used.

-Organize and utilize the headings given above.

-No more than 2 grammatical/spelling errors are allowed (please proof before submitting).

-Text is required to be in Times Roman, 12 pt font, double space the text.

- Keep voice in business third person. Do not include visuals in text analysis, if need to add create an appendix and refer your reader to such.

EDST1101 Lecture Notes - Lecture 10: Cognitive Load, Divergent Thinking, Problem Solving

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